/Engine/Source/Runtime/ClothingSystemRuntimeInterface/Public/ClothingSimulationInterface.h
Called by the engine to request data on all active collisions in a simulation. if bIncludeExternal is true, derived implementations should add the asset collisions and any collisions added at runtime, if false only the collisions from the asset should be considered
void GetCollisions ( [FClothCollisionData](API\Runtime\ClothingSystemRuntimeInterface\FClothCollisionData) & OutCollisions, bool bIncludeExternal ) const